Combined shears and sheet-metal brake.



A. O. SLENTZ. COMBINED SHEARS AND SHEET METALBRAKE.

APPLICATION FILED FEB. 28, 1910 1,036,359, Patented Aug. 20, 1912.

4 SHEETS-SHEET 1.

avwewi m/ A. 0. SLENTZ.

COMBINED SHEARS AND SHEET METAL BRAKE.

APPLICATION FILED TEE} 28. M10

1,036,359, Patented Aug,20,1912:

4 SHEETSSHEET 2.

A. 0; SLBNTZ. COMBINED SHEARS AND SHEET METAL BRAKE.

APPLIOATION FILED FEB. 28, 1910.

Patented Aug. 20, 1912.

4 SHEETS-SHEET 3.

3144mm tow Wilma 00% A. O. SLENTZ. COMBINED SHEARS AND SHEET METAL BRAKE.

APPLICATION FILED FEB. 28, 1910.

L,O36,359. Patented Aug. 20, 1912 4 SHEETSSHEET 4.

(in ur ukn,

w vtneooeo fllberms 356mm Cit ALBEBTUS 0. SLENTZ, OF CANTON, OHIO,

MACHINE COMPANY,

OFFICE.

ASSIGNOR TO THE CANTON FOUNDRY AND OF CANTON, OHIO, A CORPORATION OF OHIO.

COMBINED SHEABS AND SHEET-METAL BRAKE.

Specification of Letters Patent.

Patented Aug. 20, 1912.

Application filed February 28, 1910. Serial No. 546,330.

To all whom it may concern:

Be it known that I, ALnnn'rirs t). Snnx'rz, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Combined Shears and Sheet-Metal Brakes; and I do hereby declare that the following is a full. clear, and exact description of the ame. reference be ing had to the accompanying drawing, making a part of this specificat on. and to the numerals and figures of reference marked thereon, in which-- Figure 1 is a front side elevation. is an end view showing transverse section 0 the power shaft. Fig. 3 is a vertical section on line 3-3, Fig. 1. Fig. 4 is a view showing a portion of the bed plate illustrating a sheet (it metal thereon, also showing the knife and brake die or blade and heads in elevated position or normal position. Fi 5 is a side elc 'ation of one ot the combined pitman, can? and gear wheels showing the same in relative position with the parts shown in Fig. l, also illustrating the braketlie actuatin; mechanism and a portion of the pitman. Fig. (3 is a \lBW similar to 4, showinp the knife brought to its lowest position and the braltc die partially lowered. Fig. 7 is a Fig. '2

side elevation of (:ne of the combined pitman. 2am and gear wheels showing the parts in position relative to the position of the parts shown in hiq. 6, also showing the brake die actuating mechanism also a portion ofthc pitman. Fig. S is a iew showing a portionof the bed plate illustating the brake die brought to its lowest. position and theknife partially eletated, also showing in transverse section a finished product or folded piece of metal. H showing in perspective one of the combined pitrnan, cam and gear wheels showing the pinions designed to impart motion to said wheel and the clutch mechanism, also show ing the track or way design'icd to hold the clutch members in engagement. a view showing portions oi the knife carrying and brake the heads, also showing a portion of-onc end oi the frame and illustrating the connecting and guide pins. Fig. '11 i a side elevation of one of the combined pit l l l l l l l f drawings.

Fig. 9 is a view i Fig. i is man, cam and gear wheels showing the parts in position relative to the position of the garts shown in Fig. 8, also showing the l rake die actuating mechanism and a porl tion of the pitman.

The present invention has combined shear and relation to a sheet metal brake and more specifically designed to cut stripsv of metal from large sheets and to told said cut strips into U-shapeti position. the finished product to be used for window screen frames and other analogous purposes.

Similar numerals of reference indicate correspomling parts in all the figures of the In the accompanying drawings, 1 and 2 represent the end frames or standards which i are substantially of the form shown in the drawings, and are held in proper spaced rel lationship with reference to each other by means of the lower tie bars 3 and 4 and the bed plate 5. In the end frames or standards 1 and Z is properly journaled the ower shaft 6. one end of which is )[OJifllQt with the power wheel 7 which is driven from any source of power. Upon the power shaft ti are mounted pinions 8, one of said pinlons l being shown in Fig. 2. The pinions 8 mesh with the pinions 9 and 10, said )inions being 1 mounted upon the shaft 11, w ich shaft is properly journaled in the end. frames or standards 1 and 2. The pinions 9 and 10 \mesh with the combined pitman cam and l gear wheels 12 and 13. said wheels bein mounted upon the stud bearings l4,-whicii l stud bearings are connected to the end frames or standards 1 and 2 in the usual manner.

The top or upper portions of the end frames or standards 1. and 2 are each provided with the slots or ways 16, through i which slots or ways are passed the connecting and guide pins 17 and 18. Cnnnectmg l and guide pins 11" are pivotally attached to l the pitn'ian 15?. the bottom or lower ends at i said pitman being; 'pivotally attached to the. l wheels 12 and 13. The connecting pins 17 l are secured to the ends of the knife carrying l head Jllandpins 18 are secured to the brake. l dlk carrying head 21 in HYIY CIDTQUltIlh and l well known manner or if desired said connecting pins muy be formed integral with the heads 20 and 21. The head 20 is provided with the downward cjtending thingg'e 2223 to which flange attuehed the knife or shearbhide 23 by un ons of the clumping bolts 24. To the brake die head 21 i,--: nttached in any convenient and well known nmnner the brake die 3, it will be under stood that when rot to the wheeli l2 movement will be head 20 by meanv :nul 1 ll lttflj)l )(tlllll im mrted to the knil'e ot' the pitmen 19. The wheels l2 and 171 ;ll'( eiu-h provided with the coins 26, which cums ar for the purpose oi itlll'litlllhg a, reeiprorut'ing movement to the .xl tted burs 2Tb meum: ot' the r llers which rollers ure properly jourimled in the bottom or lower ends of the slotted hub; 13?. For the pur 'iose of guiding the slotted hairs and at the t-zLlIltB time running said burn to move up and down in a true vertical plum the stud: it are provided with the fitpluit tl portions the vertit-ul tare; ot which are located ngaiir't and in ontract the inner ill h of theblotted bore 27. be iindez t'm-d that the blorl-v" be at) titted and ittljtthtttl with rrlet 3 the dots in which the are lo ated ."r e riiprwuting m vement run be i t ;e slotted burs.

the top or upper exten the urnis' ill) wn h arms are ted to the pin It will be understood that when rotary motion is imparted to the \Vlltltl l2 and lit a reciprocating movement will be imported to the brake die carrying head 21, but by rcueon ol mid brake head being actuated by the cum grooves Q, the slotted burs 27 and the rolleis 28 a different timed n'iovement Will be imported to the brake die carrying bend from thatimpurted to the knil'e mirr vin g head. owing to the tuet that the latter is :u: touted by the pittmen 19. This dillerent timed movement i-- tor the purpose herein- :it'ter deseribed. Below the brake die urrv in gg hezid i's located the bed phtte or die 5. which bed plate secured to the end mombet; l and f. by meztnx ot' tl e tlttllti'th ill and the bolts $12 or their equivalent; The bed plate or di provided with the shear thmge iil lot l ph'' tflltlls o the slotted For the l umve: the ma hine proper during the t.

l incnibzn The clutch :didubly nwuntrtl mid when power shaft t} is rotated the r nt -l St; and ut'rprovided. her fl? b ing rottitubly and in the s nilt :in l when .ll't lz-rought into engup'enwnt n ith wi h movement will b llfijbltt tl tn the tlrlt {)ltl'lm of the machin proper but h d clutch number are out of enn u n-uni the lHlN'lllllt will remu n :i not For the purpose of holding'the eluteh air motioiris impurted I i l i t t t l i t l l l l l li by means of the hmcliine proper be permitted :1 un angle to and shear flange,

member 37 out of engagement with the clutch member 36 the lever 38 is provided, which lever is pivoted to the bracket :3!) or its equivalent, said lever being connected to the slidaible clutch member 3. in the'usiuil manner and for; the purpose of normulb holding the lever in the position to throw the clutch proper out of action or the clutch members out of engagement with each other the spring 40 'irovided, which springis located around therod all, which rod connected to the bell crank 42 and also to the bottom or lower end of the lever 38. The ends of the spring abut against the standard and the bottom or lower end of the lever 38, the tension of which spring forces the bottom or lower end of the lever 38 away from the standard 2 and at the same time holding the clutch member 37 out of engugement with the clutch member 26. then it is desired to bring the machine into action the treudle 43 is moved downwurd, said trehdle 'being pivotally mounted upon the tie bar 3 or its equivalent which downward movement rocks the bell crank con necting link 44, which link IS connected to said bell crank and treadlei lly thistlownwurd movement of the'treudle 43 the bottom or lower end of the lever 38 is moved toward the standard 2, thereby, coupling up the clutch members .lti and 37. I

It is that no stop of the "utter it has been put in motion until the wheels l3 and J3 have made a complete revolutiom therebv bringing; the mov ible parts into the some pmition that they were before the i'michine Wits put in action. in order to provide for stopping the machine :it :1 time when the mods carrying the knife and brake die are in their highest position or in the ponitiou illustrated in l, but permitting the wheels 12 and 153 to make :1 complete revolu tion, the llunge or truck 43 is provided, which lluisge or truck is provided with the spaced ends: 46. It will be Hlltltt'atOOtl that when the lever 3b is moved outward at it.\ upper end or away from the hinge or track 4-5 the clutch members tire brought into engagement mid the in'uchine proper z et in motion and when in motion the upper end of the ltV -I 38 is held in poaition to couple the clut h by menus ol' the angled portion iii but, when the lever 38 ie permitted to now towurd the wheel 11' the clutch member- 1 will be disc guged and the machine thrown out ot iu-tio The uutomutie stop pin of the machine is brought about by rem-on ol the action of the )1'i1ig-ltl.

For the purpose of providing 2t shear ent the linit'e or shear blade 23 is so adjusted. or its euttin; edge so located with reference to the sh ar flange 33, that it will be located t this feature 1 0 of importance being best illustrated in Fig. 1. It will be 'mderstoodthat the knife 23 should be so adjusted upon its head that it will only move downward a sutlicient distance to cut the sheet from which the U-shaped or folded strip such as 48 is formed as hereinafter described. After the knife 23 has cut the strip desi ned to be folded it is necessary to move t is brake die 25 downward and independent of the downward movement of the knife. This downward movement of the brake die is brought about by means of the cams 26 and the intermediate mechanism between said cams and the head carryin the brake die 25. The cams are so forms that the propertimed movement will be imparted to the knife and brake die to first cut the metal and second to form the metal thus cut. As the brake die 25 moves downward it comes against the up er surface of the sheet of metal cut by the nife, thereby forcing the metal through the slot 84, and breaking or folding the sheet into substantially the form shown in Fig. 8.

It will be understood that there should be no relative movement between the knife or shear blade 23 and the head 20 and its tlange 22 after said knife has been brought to its proper adjustment with reference to the head and in order that the strain may be taken from the clamping bolts 24, the lug bolts or set screws 49 are provided, which are arranged so that their bottom ends will bear against the to edge of the knife. This feature is best i ustrated in dotted lines. In order that the knife. can be properly adjusted the flange 22 is provided with the slots 50, through which slots the bolts 24 pass. 1

For the purpose of automaticall? elevating the treadle 43 after it has been epressed the rods 51 and 52 are provided, thecrod 51 being connected to'thetreadleand the rod h! to the bed plate 5 or its equivalent and said rods la ped and the spring 53 provided.

The arts or automatically operating the tread c are common and well known and hence no detaileddescription is necessary, sa d parts bemgshown' conventionally.

For the purpose of delivering the finished product at one side of the machine pro er the inclined plates or bars 54 are rovi ed, which plates are incl tratedin Figs-3. f

The sheartlan e33 is jso'formed that its shear edge willlocated aashort distance above thezetop' 'ofr the bed platetS an'd the gage 'pIate -orbar-BIS; is formed of such a thickness'and'sos aged from theJlange'Bt! taat itewill roper y, age thesheet ofm'e tal designedato e cut w en ;.the-sheet is-located; upon .the portion of; the. bedopil atel designed e understood to ;suppor t;--the' sheet l la ltswilllthat after the strip desigaed...ta {be I folded hasj'cut, from .theinairtjsheet it is free ined dow nwar asil l us to drop onto thatortion of the bed plate between the gage p ate and the shear fian c so that when the brake die 25 is brought down and onto the strip out, there can be no slippin or sliding movement of the strip from whici the folded strip 48 is produced or formed.

It will be understood that. b the peculiar arrangement of the device y means of which reci rocatiug movement is im arted to the kni e head and knife and to tie die head and brake die, that during a portion of the downward movement of the said parts they move in unison and that for another portion of their downward movement they do not move in unison, that is to say the brake die is moved downward to a point lower than the extreme downward movement of the shear and that during this further downward movement of the brake die the shear is raised up and brought to its normal position, after which the brake die and its head is brought upward to its normal position.

Havin fully described my invention what I ci aim as new and desire to secure by Letters Patent, is-

1. In a machine of the class described, the combination of standards, a bed plate, a knife carryin" head, a die carrying head, a knife secured to the knife carrying head and a die secured to the die carrying head, and combined gear, cam and pitinan wheels ada ted to reciprocate said knife carrying hea and die carryin head.

2. 'In a machine of ilie class described, the combination of a bedlate, standards adapted to support said be -plate, a reciprocating knife carrying head a knife secured thereto, a reciprocating die carrying head and a die secured thereto, combined gear, cam and pitmen wheels and intermediate means ada ted to reci rocate said knife carrying hea and said ie carryin head, one revolution of said wheels comp eting one operationiof said reciprocating heads.

8. In a rnachine of the class described, the combination of a bed late. standards adapted to support said be late, a reciprocating knife carrying head, a mife secured to said head, a reciprocatin die carrying head and a die secured to sm head, combined gear, cam and itmen wheels adapted to reciprocate said eads, one revolution of said wheels completing one operation of said heads, and means for stopping said wheels at the end 'offeach revolution.

'In a machine of the character de- ,scribed, the combination of a-bed-plate and standards, a: reciprocating knife carrying ';,l iead',*i a;; knife secured to said head, a rejc procating die' carryingheadand a die sc- [cnredfo fitlldydle head, combined ear, cam andpitmenwheels, means interme iate said gear, cam and pitmen wheels adapted to re- 1.0116 of said-wheelsbeingprovi ed with ircontrolling lever-adapted to-allow said use CIPIOCRtB-Stllddlt! and-knife car ing=heads concentric: track a 8' ring pressed elutch controlling member a aptedto allow said wheel to make one'revolution and-means'for operating said-lever.

5. In a machine of the class-described, a bed late, a-knife carryin head,-a=die carr ing iead, a knife-and 1e secured--to--sa1d heads, respectively, combined gear,- camand pitmenwheels,--mcans intermediate said geatycam and itmen wheels adapted to reoiprocate, said'iinife and-die carr ing=heads, one 'of said wheels being'provi ed-with a concentric track, a--sprin -pressed clutch Wheels to make-one revolution and'means foroperating said-lever.

6. In amachineof 'the character described, the combination of abedplate and standards, a knife-carryin head, aknife secured to said head, a bra re die' carrying head *and a brake die secured to-said-die carryin head, the bed plate'provided' with a slot adapted to'receive the brake die com- .bined gear, cam and pit-men wheels adapted to reciprocate said lmifecarryin'ghead and brake 1 die carrying headin umson for a ortion oftheir travel, then to-movesaid 'nife-carrying' he'ad forward,-then -to return said knife-carryim head and='move-"said brake? die carrying liead' forward and -then to'return said die carryin'g head. '1 72 In a machineof "the' character described, the combination'of ubed plate-and standards, a knife carryin'g head,faknife secured to saidhead aw'brake 'dle carrying he'ad and a-brakeldiesecured'-to'said'die carryin head, the bed 'plate provided with a'slot a apted toreceive the brak die -combined gear, cam andpitmen wheels adapted to reciprocate sai'd -knife carrying head' and brake-die carrying headin unison-fora Portion of -their' travel, then to move'isa'idmife carrying he'ad -forward,'-thentoreturn said knife carrying head and moye said brake die' carrying head forward and a then to return said 'diecarryin hea'd, one revo- -lution'of said wheels 'comp etin one operation of said hQadsand means or stopping saidwheels at the endof-eachfrevolution;

8. -Inamachine of the char'acter de scribed, the combination of a" bed a plate and standards,ja'knife carrying headfai kn'ife se-l -knifa' a andfi "ove said l through-the slot inisaid-bed plateand then" to return said b' k rakel die forward amaze 9."'In'- a -machine of the character describeth the combination of a bed plate and standards, a'knife carryin head, a knife -secured"to' said-head, abra e die-carrying head and a brake die-secured to said die carryin -head',- the bed plate-provided with a slot a apted to receive the brake die, combined-gear, camand-'pitmen wheels, pit- -meu=connecting said wheels to said knife carryingheadyandadapted to reciprocate the-same cam' tracksupon saidwheels and intermediate means for-reciprocating said die-carryinghead.

1(1-1'11- a machine-of theflcharacter de- "scribed, 'a'beddplate, a knife carrying head,-

azldiife secure to'said-head, a'diecarrying head; a diersecur'ed to said die carrying head, slotted bars connected to said die carrying head,"pitmen connected to said knife carrying head, combined cam, gear andpitmen wheels adapted to reci rocate said; knife carrying head and bin re die earrying'headzhi unison for a portion of their trave'l,'.then to move said knife carrycar'rying head and move said brake die carryinghead forward and then to return said'brake die-carrying head, one revolution'of said wheels completing one operation inner faces of-s'aid'wheels,rollers located ',upori'the'-'lower extremities of' said slotted "bars said rollers-operated within saidzcam tracks said ""pitmen piyotall connected to saidwheels, one of said w eels.provide l with'a concentric track upon'its outer face, "and meansrfor stopping said wheels at the completion"of each revolution.

11, In a machine. of the character destanda'rds,'.a, knife carrying head, a knife secureditosaid head, a brake die carrying head, 'afbrake die secured to ,said brake die Icarryin .head, the bed plate providedwith 'said knife carrying head and move said brake die carrying head forward and then to return "said brake die carrying head, one revolt: on of said wheelscompleting one operatioii' of "said he'ads,- cam tracks rovided "upofitthe inner face-of each, 'of sai wheels, bars-connected to said' brake the carrying *he'ad; rollerslccated'at the lower extremi- -'tiea4"o said L. 3. 'said-rollersadapted to travel {within'saidf-cam} tracks, pitmen econnctedfto said knife carrying head, said -pit- --1ne1i'"pivotally-connected tosaid wheels, a i'concntric' track located upon the outer face of'one o'f said' wheels, a lever-pivoted intermediate its endsupon one of said standards,

ing .head forward, then to return said knife- Ofsa'id heads, cam tracks-located upon thescribed, the combination of a bed plate anda alota apted to receive the'brake' die com ifecarrying head forward, then to'returnone end of said lever adapted to ride upon In testimony that I claim the above, I said concentric track, a power shaft jourhave hereunto subscribed my name in the naled in said standards, a clutch located presence of two witnesses.

upon said power shaft, the opposite end of ALBERTUS O. SLENTZ. said lever connected to said clutch, means Witnesses: for normally holding said clutch open and JOHN H. SPONSELLER.

means for closing said clutch. SYLVIA Bonon. 

